{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW 7 Solutions - 1 You are the engineer of a large company...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1. You are the engineer of a large company in Minnesota that manufactures sugar from beets. You are trying to decide what to do with your solid waste. The company’s waste profile is shown below. With the information given, generate an empirical molar formula for the sugar company’s waste (on a dry basis). Moisture Energy content content, as CM Glam-R 591w m- : (use my (I.- Nafstmrwarfl {WW-7 E39999: (Hos “AU—0.9143 : WC 5 lbs Dry Wt (lb) C (lb) 0 (lb) H (lb) N (lb) Inert (lb) Beet Pulp 10.53 5.05 3.96 0.67 0.27 0.57 Paper 27.92 12.14 12.28 1.68 0.08 1.73 Wood (pallets) 13.84 6.85 5.91 0.83 0.03 0.22 Cardboard 8.08 3.55 3.60 0.48 0.02 0.42 Plastic 3.99 2.40 ' 0.91 0.29 0.00 0.40 Total 64.36 30.00 26.66 3.94 0.41 3.34 Calcclkjcta) C, [Hip _ _ 66):?!wa boaerQewOC 2 ®0C3wa1wil > (O.*4‘c\ll0.§3) — $.09 IL: 0 "“ C‘s—ML (0.91.) 2 3% “0 l’) 1 (0.0La‘15fil0g5) 2‘- O.L0'} ll-3 M "’ LO-olulllossgl ‘1 9.2.? lb Smautfififi .lscfla 4.9% lbs KC) fibril/walla (0% flAchcslzv mega); l}; -: l‘o Mel MMJ _ . l C; 730“” :Z.<\g Man 0 ~, about” «2.1193109 MU [Jr - ill I“ 5 2-601 lbwoli’ lb __._-—'—' (L 2. If you incinerated the waste (as discarded), how much energy would be generated, assuming that 10% of the total energy is lost to radiation and heating the ash and all water leaving the system is in the form of water vapor (Btuflb as—discarded waste)? ASSUME COMPLETE COMBUSTION TO C02 AND H20 Pf?) DISCMI‘LPJ‘ i F__’_____,_.—- ; wk m- X imam (twat (as Baawtfl Mi : @Mwstlam @leth ~— '1 amass: gm Qapw 3 (201,19Cb’rlaa @Mllv) 1 20mg” .3 3h WOOQ 3 Q?-‘°‘>*LUW WM -— Humz, at» (#le 1' Cam/jut 310m Bkllw‘) « Sea-set [9w QM»; > LtiotbjL ll/{igl ask/Hg) ‘—‘ S {Met—1 Eplut - "Wm": 505mm, <6 %"“//oolb wank saw cut loss Jemima It RAF-smack Sossmtcc ”LSDSKVlegfit = quL§?.(,z gk/fiflbme—t "Dodo Lavl motto to -: w Cpl’ {Julio low-t9 3. If you let the waste dry completely before incineration, how much energy would be generated, assuming that 10% of the total energy is lost to radiation and heating the ash and all water leaving the system is in the form of water vapor (Btullb as-discarded waste)? AGAIN. ASSUME COMPLETE COMBUSTION T0 C02 AND H20 Same (”Q 1%; [”3" ”9:”0 DH W? (“lelkJfikcfi it l X {mm (W @“13 We? '1 (IOtS’YSLS‘t‘sB $54153 T (0%000 PM Bk (Paw (1101th (.qu {BM/Ito) : 21 “CHE Btvx WM 027.33% mm {Sim/lie} : “3-043. Hi1! 53“ (@qu t%.a§°5 Dom: WM * boomul {an Maoist. BEGfi (AHéqoBh/tb) : ‘3 “FNMA @M E v: (DOMILOCX @‘hA/(Odb r L033 43 {Marina} iii/wig Age. Sob‘ill.0‘t —~ (‘Jowfitloaimb '3 ‘46“ areas 1)5'l“ilc)cu|ls Daub 51‘0“) Kb 3 W lam/‘5 4. If all of the waste was landfilled and the CH4 produced was used for energy generation, how much energy would be produced (Btw’lb as-discarded waste)? from 0W Q 1450ch *r A920 ——'? mCle “SCOA HUGH M’MMUIHB W‘: Clak5*Zc*3V1 C5 1:} e E; [AME EMMA“ ‘ Ca $01491“; “"1 [03 ’fiom Séook (2“: 01H) CH“ H7 890M) amour \o (mmL Ma @M/|bm[f q$510 LL ‘ )990‘3 1B [9339 ”TMKXJO'Méh/x a: gq 3(ch m“ E Lirflm V03 22/“9 \LJ \ 3 mflwwfl \ng ?JH~§~:\ WW : 0. Lu, \mu CH1,” 3%399'1 {5}“ C (1mm KW J00“; Wag . “swam DMK {mgr-19am 5405‘- 9.4 Suppose the average SUV is driven 10,000 miles per year with a fuel efficiency of 20 mpg. Gasoline contains 522 lbs of carbon per gallon, all of which ends up as CO; when burned, and it has an energy density of 125,000 Btu!“ gal. Suppose all of the annual cardboard recovered in Table 9.10 would have gone to landfills each year. (a) How many tons of C02 will be emitted per SUV year? (b) How many Btus of energy will have been consumed? (c) The carbon savings from cardboard recycling is equivalent to carbon emissions from how many SUVs? ((1) How many “average SUVs” of energy are saved by cardboard recycling? (a) [0100-0 9334’ , W} __ 57,2, use, . 11» Mote 61- Mammal (4:4 I»; (Q. ,_ ' -—-'——"— _ _ J ______,_,__——- . v].{ 70 Milan 639} I'Zl‘ot; “to We, [lawlefoa (<5 3 _ _._, w .....__.. _._ .._._. ._ \. """-—_._. T" I 2W” ' 73:7 ' M 3 / ' (c; MM T9644 GAO}. Papv499Wl°°WA :. HZwoL low/qr- ;WM : (walaamt Wt oNr WWW Fa» 11:} Mo? to 'ar CUM/l LOMTr/xlou 01% (”cullooaroe Mcqchol) 7 0.51 (, W‘Eflfr—lols C7 hm L’lZXIOl’lon , 0.0“, M a ‘ h 1r % : H.03Xm7 WMC-Jgfla WT -' (gowl- Lo (Oi/m leash“, (4:05 51 j Wbbrvc , I’ll/H" (0L *0 7', M ’flk‘é 7i"? Ea" _,_ ...... ______ _q___ manic WW he?) 2000lb Fl bgflocglflmcoz w /V|f {bum SW3 lcéfloqglons COL/WV ., EMS/10? Suds (Joanna ‘14s mama; r ’5“— [how 'Zoool". Q.VL(CM1\;\ I'MI ‘ i Eh I N Li {and $05" ('94:? MOP" EM/ bur Owes)» (0.2c x101 6W w W {—(a-fiqxoltjEyh/L “>901 Sm/ for, 9.26 One kilogram of as received yard trimmings is made up of approximately 620 g of moisture, 330 g of decomposable organics represented by C12_76H21.2309,25No.54 and 50 g of other constituents. (a) At 0.0224 m3x’mol of CH4, what volume of methane gas would be produced per kilogram of as received yard trimmings? (b) At 890 kamol, what is the energy content of that methane? W“ Qatlo-’2c~5d j WIZ‘r‘tvMZLzs -Z(42L)~S(os~t\ <5 8” .1; (,5; ”ML“ CHM moi Owns. Wm) 61 Orjam'w : IZ "71001” 2nd MC. 16 (m) t 0 3‘1 (“1) -. 3'50 ‘3‘er (95’ WA: CH1 2< 1W4 “Shaw _ 330 OWMC‘ x (9.0739! in? 0.414 Ml WNU? (850 3' 15‘; LlWWIvavY-i mate tun] ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern